Research purpose: as a main tool to cut rock, disccutter was mainly assembled on cutting wheel of TBM, mixed shield and rock shield.
研究目的：盘形滚刀是一种重要破岩刀具，主要用在掘进机(TBM)、复合式盾构及岩石盾构的刀盘上。
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This paper presents a new method in which the disccutter always has the same curvature and the curvature differential with that of the surfaces being machined.
Parametric values on the contact lines of disccutter blade and the side surface cogwheel, disccutter blade and gear root surface are determined by using vector method.